JP2557675Y2 - Clamp mechanism for indexable inserts - Google Patents
Clamp mechanism for indexable insertsInfo
- Publication number
- JP2557675Y2 JP2557675Y2 JP1989057625U JP5762589U JP2557675Y2 JP 2557675 Y2 JP2557675 Y2 JP 2557675Y2 JP 1989057625 U JP1989057625 U JP 1989057625U JP 5762589 U JP5762589 U JP 5762589U JP 2557675 Y2 JP2557675 Y2 JP 2557675Y2
- Authority
- JP
- Japan
- Prior art keywords
- positioning pin
- chip
- tip
- mounting seat
- fitting hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
- B23B29/04—Tool holders for a single cutting tool
- B23B29/08—Tool holders equipped with grooves arranged crosswise to the longitudinal direction for setting the cutting tool
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
- B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
- B23B27/16—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped
- B23B27/1677—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped with plate-like cutting inserts clamped by a clamping member acting almost perpendicularly on the chip-forming plane and at the same time upon the wall of a hole in the insert
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T407/00—Cutters, for shaping
- Y10T407/19—Rotary cutting tool
- Y10T407/1906—Rotary cutting tool including holder [i.e., head] having seat for inserted tool
- Y10T407/1934—Rotary cutting tool including holder [i.e., head] having seat for inserted tool with separate means to fasten tool to holder
- Y10T407/1936—Apertured tool
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T407/00—Cutters, for shaping
- Y10T407/22—Cutters, for shaping including holder having seat for inserted tool
- Y10T407/2272—Cutters, for shaping including holder having seat for inserted tool with separate means to fasten tool to holder
- Y10T407/2274—Apertured tool
- Y10T407/2276—Apertured tool with means projecting through aperture to force tool laterally against reaction surface
- Y10T407/2278—Tilting clamp element and separate means to tilt same
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T407/00—Cutters, for shaping
- Y10T407/22—Cutters, for shaping including holder having seat for inserted tool
- Y10T407/2272—Cutters, for shaping including holder having seat for inserted tool with separate means to fasten tool to holder
- Y10T407/2282—Cutters, for shaping including holder having seat for inserted tool with separate means to fasten tool to holder including tool holding clamp and clamp actuator
Description
【考案の詳細な説明】 ［産業上の利用分野］ この考案は、スローアウエイチツプのクランプ機構に
係り、詳しくは、取付穴を有するスローアウエイチツプ
を工具ホルダへ装着する際に用いて好適なスローアウエ
イチツプのクランプ機構に関する。[Detailed description of the invention] [Industrial application field] This invention relates to a clamp mechanism for a throw-away tip, and more particularly, to a throw-away tip suitable for mounting a throw-away tip having a mounting hole to a tool holder. The present invention relates to an out-of-chip clamping mechanism.
［従来の技術］ 従来、この種のスローアウエイチツプのクランプ機構
（以下、クランプ機構と略称する。）として、例えば第
４図ないし第６図に示すものが知られている。[Prior Art] Conventionally, as a clamp mechanism (hereinafter abbreviated as a clamp mechanism) for a throw-away chip of this type, for example, the one shown in FIGS. 4 to 6 is known.
これらの図に示すクランプ機構は、先端にチツプ取付
座１が形成された工具ホルダ２に、上記チツプ取付座１
に開口する嵌合穴３が形成され、この嵌合穴３に、先端
側が上記チツプ取付座１より突出して上記チツプ取付座
１に載置されるスローアウエイチツプ（以下、チツプと
略称する。）４の取付穴4aと係合する位置決めピン５が
嵌合され、工具ホルダ２の上記位置決めピン５の先端よ
りも工具基端側の位置に、クランプボルト６で締め込ま
れるクランプ駒７が配設され、このクランプ駒７の下方
に、後端の楔面8aが上記クランプ駒７後端下部の楔面7a
と当接するクランプ板８が配設されてなるものである。The clamp mechanism shown in these figures is provided with a tool holder 2 having a tip mounting seat 1 formed at the tip thereof.
A fitting hole 3 is formed in the fitting hole 3, and a tip end side of the fitting hole 3 protrudes from the chip mounting seat 1 and is mounted on the chip mounting seat 1 (hereinafter, simply referred to as a chip). Positioning pins 5 engaged with the mounting holes 4a of the tool 4 are fitted, and a clamp piece 7 which is tightened by a clamp bolt 6 is provided at a position on the tool base end side of the tool holder 2 closer to the tool than the tip of the positioning pins 5. Below the clamp piece 7, a rear wedge surface 8a is provided at a lower end of the clamp piece 7 at a lower end thereof.
And a clamp plate 8 to be in contact therewith.
ここで、上記位置決めピン５は、上記嵌合穴３の雌ね
じ部3aと螺合する雄ねじ部5aと、上記嵌合穴３の嵌合部
3bと嵌合する嵌合軸5bと、上記チツプ４の取付穴4aと係
合するチツプ係止部5cとを有してなるもので、後述する
クランプ板８の押圧力を受け止めて、上記チツプ４のチ
ツプ取付座１と平行な方向への移動を拘束するようにな
っている。Here, the positioning pin 5 includes a male screw portion 5a screwed with the female screw portion 3a of the fitting hole 3, and a fitting portion of the fitting hole 3.
3b, and a chip engaging portion 5c which engages with the mounting hole 4a of the chip 4. The chip receives a pressing force of a clamp plate 8, which will be described later, and 4 is restricted from moving in a direction parallel to the chip mounting seat 1.
このようなクランプ機構によれば、上記クランプボル
ト６を締め付けることにより、上記チツプ４がクランプ
駒７に押さえ込まれてチツプ取付座１に圧接されると同
時に、上記クランプボルト頭部6aとクランプ駒７との間
の楔作用と、上記クランプ駒７の楔面7aと上記クランプ
板８の楔面8aとの間の楔作用により、クランプ板８が工
具先端側に押し出されてチツプ４が工具先端側へと押圧
され、これにより、チツプ４の取付穴4aと位置決めピン
５のチツプ係止部5cとが圧接してチツプ４がチツプ取付
座１と平行な方向にも押さえ込まれる。According to such a clamping mechanism, by tightening the clamp bolt 6, the tip 4 is pressed into the clamp piece 7 and pressed against the chip mounting seat 1, and at the same time, the clamp bolt head 6a and the clamp piece 7 are pressed. And the wedge action between the wedge face 7a of the clamp piece 7 and the wedge face 8a of the clamp plate 8, the clamp plate 8 is pushed out toward the tool tip side, and the tip 4 is moved toward the tool tip side. As a result, the mounting hole 4a of the chip 4 and the chip engaging portion 5c of the positioning pin 5 are pressed against each other, and the chip 4 is pressed down in a direction parallel to the chip mounting seat 1.
［考案が解決しようとする課題］ ところで、上述した従来のクランプ機構においては、
嵌合穴３の嵌合部3bにおける内径d1は、加工誤差あるい
は組付性を考慮して、位置決めピン５の嵌合軸5bの軸径
d2よりも通常大きめに設定される。このため、チツプ４
のクランプ時に、位置決めピン５が、クランプ板８の押
圧力を受けて嵌合穴３の内部で動いてしまい、これに伴
って、チツプ４に形成された切刃4bの工具長手方向（第
４図において左右方向）における位置がクランプ操作の
前後で変化し、この結果、切刃4bを所定の位置に位置決
めすることが困難であるという欠点が生じていた。[Problem to be solved by the invention] By the way, in the above-mentioned conventional clamp mechanism,
Inside diameter d 1 of the fitting part 3b of the fitting hole 3, in consideration of the machining errors or assembling property, the shaft diameter of the fitting shaft 5b of the positioning pin 5
It is set to usually larger than d 2. For this reason, chip 4
At the time of clamping, the positioning pin 5 moves inside the fitting hole 3 under the pressing force of the clamp plate 8, and accordingly, the cutting edge 4b formed on the chip 4 is moved in the tool longitudinal direction (fourth direction). The position in the left and right direction (in the left and right direction in the figure) changes before and after the clamping operation, and as a result, there is a disadvantage that it is difficult to position the cutting blade 4b at a predetermined position.
また、嵌合穴３の嵌合部3bの内径d1が、位置決めピン
５の嵌合軸5bの軸径d2よりも大きいため、位置決めピン
５がクランプ板８の押圧力を受けた状態において、上記
嵌合部３と上記嵌合軸5bは、位置決めピン５の移動、傾
き等に応じて点接触ないしは線接触状態で接触する。こ
のため、接触部分にクランプ板８の押圧力が集中して位
置決めピン５が強い曲げ作用を受け、位置決めピン５の
損傷を招き易いという欠点もあった。Further, since the inner diameter d 1 of the fitting portion 3 b of the fitting hole 3 is larger than the shaft diameter d 2 of the fitting shaft 5 b of the positioning pin 5, the positioning pin 5 receives the pressing force of the clamp plate 8. The fitting portion 3 and the fitting shaft 5b come into contact with each other in a point contact or a line contact state according to the movement, inclination, and the like of the positioning pin 5. For this reason, the pressing force of the clamp plate 8 concentrates on the contact portion, and the positioning pin 5 is subjected to a strong bending action, so that the positioning pin 5 is easily damaged.
さらに、上記嵌合穴３の内径d1と位置決めピン５の軸
径d2との差の設定値が小さいと、加工誤差によっては、
位置決めピン５を嵌合穴３に挿入することができないこ
とがあり、他方、上記内径d1と軸径d2の差の設定値が大
きいと、加工誤差によっては位置決めピン５の移動量が
著しく大きくなって上述の欠点がより助長されることが
あるため、勢い上記内径d1及び軸径d2の公差を厳しくせ
ざるを得ず、この結果、歩留まり率が悪化すると同時
に、加工コストが著しく上昇するという欠点もあった。Further, the setting value of the difference between the shaft diameter d 2 of the inner diameter d 1 and the positioning pin 5 of the fitting hole 3 is small, some machining error,
It may be impossible to insert the positioning pin 5 into the fitting hole 3, on the other hand, when the set value of the difference between the inner diameter d 1 and the shaft diameter d 2 is larger, depending on the processing error significantly the amount of movement of the positioning pin 5 because increases sometimes above mentioned disadvantages are more conducive, momentum inevitable to strict tolerances of the inner diameter d 1 and the shaft diameter d 2, this results at the same time the yield rate is deteriorated, the processing cost is remarkably There was also the disadvantage of rising.
この考案は、このような背景の下になされたもので、
クランプ操作中における上記位置決めピンの移動を確実
に阻止してチツプの位置変化を防止でき、また、位置決
めピンにかかる押圧力の集中を防止して位置決めピンの
損傷を回避でき、さらに、嵌合穴及び位置決めピン双方
の加工公差を大幅に緩和できるクランプ機構を提供する
ことを目的とする。This idea was made in such a background,
The movement of the positioning pin during the clamping operation can be reliably prevented to prevent a change in the position of the chip, and the concentration of the pressing force applied to the positioning pin can be prevented to prevent the positioning pin from being damaged. It is another object of the present invention to provide a clamp mechanism capable of greatly reducing the processing tolerance of both the positioning pin and the positioning pin.
［課題を解決するための手段］ 上記課題を解決するためにこの考案のクランプ機構
は、工具ホルダに嵌合される位置決めピンの基端側と、
この位置決めピンと嵌合する上記工具ホルダの嵌合穴と
の双方に、上記位置決めピンの軸線方向一方の側に向か
うにつれて拡径し、この位置決めピンが前記嵌合穴に嵌
合されたときに両者の軸線方向が一致して、この軸線周
りの一周にわたって互いに当接するテーパ部を形成した
ものである。[Means for Solving the Problems] In order to solve the above problems, the clamp mechanism of the present invention includes a base end side of a positioning pin fitted to a tool holder,
Both the positioning pin and the fitting hole of the tool holder to be fitted are enlarged in diameter toward one side in the axial direction of the positioning pin, and when the positioning pin is fitted to the fitting hole, the diameter increases. Are formed so that the tapered portions are in contact with each other over one circumference around this axis.
［作用］ 上記構成によれば、位置決めピンをその軸方向に移動
させることにより、位置決めピンと嵌合穴のテーパ部と
が互いに密着して位置決めピンの径方向の移動が拘束さ
れるので、この状態でチツプを位置決めピンの軸線方向
と交差する方向に押圧しても、位置決めピンの位置が変
化しない。[Operation] According to the above configuration, by moving the positioning pin in the axial direction, the positioning pin and the tapered portion of the fitting hole come into close contact with each other, thereby restricting the movement of the positioning pin in the radial direction. Even if the chip is pressed in the direction intersecting the axis direction of the positioning pin, the position of the positioning pin does not change.
また、位置決めピンを軸方向に移動させることによっ
て各テーパ部が周方向全長に渡って隙間なく密着するの
で、押圧部材から位置決めピンに加えられる押圧力が位
置決めピンの周方向に分散される。Further, by moving the positioning pin in the axial direction, the respective tapered portions come into close contact with each other with no gap over the entire length in the circumferential direction, so that the pressing force applied from the pressing member to the positioning pin is dispersed in the circumferential direction of the positioning pin.
さらに、位置決めピンのテーパ部と嵌合穴のテーパ部
に加工誤差があっても、位置決めピンの軸方向の位置を
調整すれば、これらは必ず密着するので、各テーパ部の
加工公差を厳しく設定する必要がない。Furthermore, even if there is a processing error between the tapered portion of the positioning pin and the tapered portion of the fitting hole, if the positioning pin is adjusted in the axial direction, they will always adhere to each other, so the processing tolerance of each tapered portion is set strictly. No need to do.
［実施例］ 以下、第１図ないし第３図を参照して、本考案の実施
例を説明する。なお、上述した従来のクランプ機構と同
一の構成要素には同一符号を付し、その説明を省略す
る。Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 to 3. Note that the same components as those of the above-described conventional clamp mechanism are denoted by the same reference numerals, and description thereof will be omitted.
第１図に示すように、本実施例のクランプ機構は、先
端にチツプ取付座１が形成された工具ホルダ２に、チツ
プ取付座１に開口する嵌合穴10が形成され、この嵌合穴
10に、チツプ取付座１に載置されるチツプ４の取付穴4a
と係合する位置決めピン11が嵌合され、この位置決めピ
ン11よりも工具基端側の位置に、クランプボルト６に締
め付けられて上記チツプ４をチツプ取付座１に押圧する
クランプ駒７と、このクランプ駒７と係合して、上記チ
ツプ４をチツプ取付座１と平行な方向に押圧するクラン
プ板（押圧部材）８とが配設されて概略構成されてい
る。As shown in FIG. 1, in the clamping mechanism of the present embodiment, a fitting hole 10 opening to the chip mounting seat 1 is formed in a tool holder 2 having a tip mounting seat 1 formed at a tip thereof.
10, the mounting hole 4 a of the chip 4 placed on the chip mounting seat 1
And a clamp piece 7 tightened by a clamp bolt 6 to press the chip 4 against the chip mounting seat 1 at a position closer to the tool base end than the positioning pin 11. A clamp plate (pressing member) 8 that engages with the clamp piece 7 and presses the chip 4 in a direction parallel to the chip mounting seat 1 is provided and schematically configured.
第２図に示すように、上記工具ホルダ２の嵌合穴10
は、工具ホルダ２を上記チツプ取付座１と直交する方向
に貫いて延び、その内面のチツプ取付座１側の口元近傍
を除く部分には雌ねじ部12が形成されている。そして、
嵌合穴10の上記口元部分には、上記チツプ取付座１に向
かうに従って漸次拡径するテーパ部13が形成されてい
る。As shown in FIG.
The tool holder 2 extends through the tool holder 2 in a direction perpendicular to the chip mounting seat 1, and a female screw portion 12 is formed on a portion of the inner surface thereof except for the vicinity of the mouth on the chip mounting seat 1 side. And
A tapered portion 13 whose diameter gradually increases toward the chip mounting seat 1 is formed at the mouth portion of the fitting hole 10.
一方、第３図に示すように、上記位置決めピン11は、
基端側に上記嵌合穴10の雌ねじ部12と螺合される雄ねじ
部14が形成される一方で、先端側に上記チツプ４の取付
穴4aと係合するフランジ状のチツプ係止部15が形成され
てなるものである。そして、位置決めピン11基端側の上
記雄ねじ部14よりもチツプ係止部15寄りの部分には、上
記チツプ係止部15に向かうに従って漸次拡径するテーパ
部16が形成されている。このテーパ部16のテーパ角θ2
は、上記嵌合穴10のテーパ部13のテーパ角θ1よりも僅
かに大きく設定されている。On the other hand, as shown in FIG.
A male screw portion 14 to be screwed with the female screw portion 12 of the fitting hole 10 is formed on the base end side, while a flange-shaped chip engaging portion 15 engaging with the mounting hole 4a of the chip 4 is formed on the distal end side. Are formed. Further, a tapered portion 16 is formed on a portion of the base end side of the positioning pin 11 closer to the chip engaging portion 15 than the male screw portion 14, the diameter gradually increasing toward the chip engaging portion 15. The taper angle θ 2 of the tapered portion 16
Is set slightly larger than the taper angle θ 1 of the tapered portion 13 of the fitting hole 10.
以上のように構成されたクランプ機構を用いてチツプ
４を工具ホルダ２に装着するには、まず、位置決めピン
11を嵌合穴10に挿入し、ついで、雄ねじ部14と雌ねじ部
12とを螺合させることにより、位置決めピン11をその軸
方向先端側、すなわち、工具ホルダ２の下面に向かう側
に締め付けて、互いのテーパ部13、16を密着させる。In order to attach the chip 4 to the tool holder 2 using the clamp mechanism configured as described above, first, the positioning pin
11 into the fitting hole 10, then the male thread 14 and the female thread
By screwing the positioning pin 11 and the positioning pin 11, the positioning pin 11 is fastened to the tip side in the axial direction, that is, toward the lower surface of the tool holder 2, and the tapered portions 13 and 16 are brought into close contact with each other.
次に、チツプ取付座１より突出する位置決めピン11の
チツプ係止部15にチツプ４の取付穴4aとを係合させた上
で、チツプ４をチツプ取付座１に載置する。そして、ク
ランプボルト６を締め付けることにより、クランプ駒７
でチツプ４をチツプ取付座１に押さえ込むと共に、クラ
ンプ駒７によって工具先端側に押し出されるクランプ板
８でチツプ４を工具先端側へ押圧して、チツプ４の取付
穴4aと位置決めピン11のチツプ係止部15とを圧接させ
る。Next, the chip 4 is placed on the chip mounting seat 1 after the mounting hole 4a of the chip 4 is engaged with the chip engaging portion 15 of the positioning pin 11 protruding from the chip mounting seat 1. Then, by tightening the clamp bolt 6, the clamp piece 7
The chip 4 is pressed against the tip mounting side by the clamp piece 8 and the chip 4 is pressed toward the tool tip side by the clamp piece 7 so that the mounting hole 4a of the chip 4 and the tip of the positioning pin 11 are engaged. The stop portion 15 is brought into pressure contact with the stop portion 15.
このとき、位置決めピン11は、クランプボルト６を締
め付けるにつれて工具先端側へと徐々に押さえ付けられ
てゆくが、嵌合穴10のテーパ部13と位置決めピン11のテ
ーパ部16とが密着しているため、クランプ操作の前後に
おいて、その径方向の位置が変化することはない。この
ため、チツプ４の切刃4aの工具長手方向（第１図におい
て左右方向）の位置もクランプ操作の前後で変化せず、
従って、切刃4bを、工具長手方向所望の位置に容易に位
置決めすることができる。At this time, the positioning pin 11 is gradually pressed down toward the tool tip as the clamp bolt 6 is tightened, but the tapered portion 13 of the fitting hole 10 and the tapered portion 16 of the positioning pin 11 are in close contact. Therefore, the position in the radial direction does not change before and after the clamping operation. For this reason, the position of the cutting edge 4a of the chip 4 in the tool longitudinal direction (left-right direction in FIG. 1) does not change before and after the clamping operation.
Therefore, the cutting blade 4b can be easily positioned at a desired position in the tool longitudinal direction.
また、位置決めピン11を締め付けることにより、位置
決めピン11のテーパ部16が嵌合穴10のテーパ部13と周方
向全長に渡って隙間なく密着するため、位置決めピン11
にかかる押圧力は嵌合穴10のテーパ部13の周方向に分散
して伝達される。このため、位置決めピン11が強い曲げ
作用を受けず、その損傷が大幅に回避される。Further, by tightening the positioning pin 11, the tapered portion 16 of the positioning pin 11 closely contacts the tapered portion 13 of the fitting hole 10 without any gap over the entire length in the circumferential direction.
Is distributed and transmitted in the circumferential direction of the tapered portion 13 of the fitting hole 10. For this reason, the positioning pin 11 is not subjected to a strong bending action, and its damage is largely avoided.
また、各テーパ部13、16のテーパ角θ1、θ2が正確に
一致しなくとも、位置決めピン11を締め付けることによ
ってテーパ部13、16が必ず密着するので、これらテーパ
角θ1、θ2の加工公差を緩やかに設定できる。このた
め、位置決めピンと嵌合穴双方を加工する際の歩留まり
率が向上すると共に、加工コストが低減される。Even if the taper angles θ 1 , θ 2 of the taper portions 13, 16 do not exactly match, the taper portions 13, 16 always adhere to each other by tightening the positioning pin 11, so that these taper angles θ 1 , θ 2 Processing tolerance can be set gently. Therefore, the yield rate when processing both the positioning pin and the fitting hole is improved, and the processing cost is reduced.
さらに、本実施例によれば、位置決めピン11と嵌合穴
10とがテーパ部13、16で確実に嵌合するので、従来のク
ランプ機構においてこれら嵌合部分の軸方向長さがある
程度必要であったことと比較して、テーパ部13、16の軸
方向の全長を大幅に短縮することができる。このため、
工具ホルダ２の上下方向の肉厚が不足して嵌合穴10の長
さを大きく設定することができない場合（例えば小型ホ
ルダ等）であっても、位置決めピン11の捩込み長さを十
分に大きく設定して、確実にチツプ４をクランプできる
という優れた効果をも奏する。Further, according to the present embodiment, the positioning pin 11 and the fitting hole
10 is securely fitted at the tapered portions 13 and 16, so that the axial length of these fitted portions is required to some extent in the conventional clamping mechanism. Can be greatly shortened. For this reason,
Even in the case where the vertical thickness of the tool holder 2 is insufficient and the length of the fitting hole 10 cannot be set large (for example, a small holder), the screwing length of the positioning pin 11 should be sufficient. An excellent effect that the chip 4 can be surely clamped by setting it large is also provided.
なお、本実施例においては、特にチツプ４をクランプ
駒７とクランプ板８の２つの部材によって２方向から押
さえ込んでいるが、本考案のクランプ機構はこれに限る
ものではない。例えば、チツプ４の後端側を、単一の押
圧部材によって位置決めピン11の軸線と斜めに交差する
方向に押圧すれば、チツプ４が押圧力の分力によってチ
ツプ取付座１と直交する方向及び平行な方向にそれぞれ
押圧されるので上記と同様の効果を得ることができる。
要するに、チツプ４を位置決めピン11の軸線と交差する
方向に押圧することによって、位置決めピン11とチツプ
４の取付穴4aとを係合させる方式のクランプ機構であれ
ば、押圧部材の形状、配置等を問わず適用可能なもので
ある。In the present embodiment, the chip 4 is pressed down from two directions by the two members of the clamp piece 7 and the clamp plate 8, but the clamp mechanism of the present invention is not limited to this. For example, if the rear end side of the chip 4 is pressed by a single pressing member in a direction obliquely intersecting the axis of the positioning pin 11, the chip 4 can be moved in a direction orthogonal to the chip mounting seat 1 by a component force of the pressing force. Since they are pressed in parallel directions, the same effect as above can be obtained.
In short, if the clamping mechanism is of a type that engages the positioning pin 11 with the mounting hole 4a of the chip 4 by pressing the chip 4 in a direction intersecting with the axis of the positioning pin 11, the shape, arrangement, etc. of the pressing member It is applicable regardless of.
また、位置決めピン11の形状も本実施例に限るもので
はなく、例えば、工具ホルダ２の下面側よりチツプ取付
座１に向かって穿設されるようなもの等、種々変形可能
である。Further, the shape of the positioning pin 11 is not limited to the present embodiment, and may be variously modified, for example, such as one formed from the lower surface side of the tool holder 2 toward the chip mounting seat 1.
［考案の効果］ 以上説明したように、この考案は、工具ホルダに嵌合
される位置決めピンの基端側と、この位置決めピンと嵌
合する上記工具ホルダの嵌合穴との双方に、上記位置決
めピンの軸線方向一方の側に向かうにつれて拡径して互
いに当接するテーパ部を形成したものであるから、嵌合
穴に挿入される位置決めピンを軸方向へ移動させること
により、各々のテーパ部が周方向全長に渡って隙間なく
密着して位置決めピンの径方向の移動が拘束され、この
結果、以下のような効果を奏する。[Effects of the Invention] As described above, the present invention provides the positioning of the positioning pin on both the base end side of the positioning pin fitted to the tool holder and the fitting hole of the tool holder fitted with the positioning pin. Since the diameter increases toward one side in the axial direction of the pin to form a tapered portion that abuts each other, each tapered portion is moved in the axial direction by moving the positioning pin inserted into the fitting hole in the axial direction. The positioning pin is tightly fitted over the entire length in the circumferential direction without any gap, thereby restricting the movement of the positioning pin in the radial direction. As a result, the following effects are obtained.
押圧部材の押圧力が位置決めピンに作用しても位置決
めピンの径方向の位置が変化しないので、チツプを容易
に所望の位置に位置決めすることができる。Even if the pressing force of the pressing member acts on the positioning pin, the position of the positioning pin in the radial direction does not change, so that the chip can be easily positioned at a desired position.
位置決めピンにかかる押圧力がテーパ部の周方向に分
散して作用するので、位置決めピンが強い曲げ作用を受
けず、その損傷が大幅に回避される。Since the pressing force applied to the positioning pin is distributed in the circumferential direction of the tapered portion, the positioning pin is not subjected to a strong bending action, and damage to the positioning pin is largely avoided.
各テーパ部のテーパ角が正確に一致しなくとも、必ず
テーパ部が密着するので、これらテーパ部の加工公差を
大幅に緩和して、歩留まり率の向上並びに加工コストの
低減を図ることができる。Even if the taper angles of the respective tapered portions do not exactly match, the tapered portions are always in close contact with each other, so that the processing tolerance of these tapered portions can be greatly relaxed, and the yield rate can be improved and the processing cost can be reduced.
各テーパ部の軸方向長さを、従来の位置決めピンと嵌
合穴との嵌合部分の軸方向長さよりも大幅に短縮できる
ので、小型ホルダ等、嵌合穴長さを十分に取れない工具
ホルダに適用する場合であっても、位置決めピンの全長
を短縮して容易に組み込むことができる。Since the axial length of each tapered portion can be significantly reduced compared to the conventional axial length of the fitting portion between the positioning pin and the fitting hole, a tool holder such as a small holder that does not have a sufficient fitting hole length However, even if the present invention is applied to a locating pin, the entire length of the locating pin can be shortened and easily incorporated.
第１図ないし第３図は本考案の一実施例を示すもので、
第１図は工具ホルダの縦断面図、第２図は嵌合穴の断面
図、第３図は位置決めピンの拡大図、第４図ないし第６
図は従来例を示す図で、第４図は工具ホルダの縦断面
図、第５図は嵌合穴の断面図、第６図は位置決めピンの
拡大図である。 １……チツプ取付座、２……工具ホルダ、４……スロー
アウエイチツプ、4a……取付穴、８……クランプ板（押
圧部材）、10……嵌合穴、11……位置決めピン、13、16
……テーパ部。1 to 3 show an embodiment of the present invention.
1 is a longitudinal sectional view of a tool holder, FIG. 2 is a sectional view of a fitting hole, FIG. 3 is an enlarged view of a positioning pin, and FIGS.
FIG. 4 is a view showing a conventional example, FIG. 4 is a longitudinal sectional view of a tool holder, FIG. 5 is a sectional view of a fitting hole, and FIG. 6 is an enlarged view of a positioning pin. DESCRIPTION OF SYMBOLS 1 ... Chip mounting seat, 2 ... Tool holder, 4 ... Throw-out tip, 4a ... Mounting hole, 8 ... Clamp plate (pressing member), 10 ... Fitting hole, 11 ... Positioning pin, 13 , 16
.... Tapered part.
Claims (1)
ダに、先端側が上記チップ取付座より突出して、該チッ
プ取付座に載置されるスローアウェイチップの取付穴と
係合する位置決めピンが嵌合され、この位置決めピンの
先端側の周囲に、上記チップ取付座に載置されたスロー
アウェイチップを、少なくとも上記位置決めピンの軸線
と交差する方向に押圧する押圧部材が配設されてなるス
ローアウェイチップのクランプ機構において、 上記位置決めピンの基端側と、この位置決めピンと嵌合
する上記工具ホルダの嵌合穴との双方に、上記位置決め
ピンの軸線方向一方の側に向かうにつれて拡径し、この
位置決めピンが前記嵌合穴に嵌合されたときに両者の軸
線方向が一致して、この軸線周りの一周にわたって互い
に当接するテーパ部を形成したことを特徴とするスロー
アウェイチップのクランプ機構。1. A tool holder having a tip mounting seat formed at a tip thereof has a positioning pin projecting from the tip mounting seat at a tip end thereof and engaging with a mounting hole of a throw-away tip mounted on the tip mounting seat. A throwing member which is fitted around the distal end side of the positioning pin and has a pressing member which presses the throw-away chip mounted on the chip mounting seat at least in a direction intersecting the axis of the positioning pin. In the clamp mechanism of the away tip, the diameter of the base pin is increased toward both the base end side of the positioning pin and the fitting hole of the tool holder fitted with the positioning pin toward one side in the axial direction of the positioning pin, When the positioning pins are fitted into the fitting holes, the axial directions of the two coincide with each other to form a tapered portion that contacts each other over one circumference around the axis. A clamp mechanism for a throw-away tip.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989057625U JP2557675Y2 (en) | 1989-05-19 | 1989-05-19 | Clamp mechanism for indexable inserts |
| KR2019900003122U KR950006963Y1 (en) | 1989-05-19 | 1990-03-17 | Clamping device for a insert cutter |
| US07/524,473 US5035544A (en) | 1989-05-19 | 1990-05-17 | Insert clamped tool |
| DE69007533T DE69007533T2 (en) | 1989-05-19 | 1990-05-18 | Clamp steel holder. |
| EP90109474A EP0398363B1 (en) | 1989-05-19 | 1990-05-18 | Insert clamped tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989057625U JP2557675Y2 (en) | 1989-05-19 | 1989-05-19 | Clamp mechanism for indexable inserts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02150102U JPH02150102U (en) | 1990-12-25 |
| JP2557675Y2 true JP2557675Y2 (en) | 1997-12-10 |
Family
ID=13061067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989057625U Expired - Lifetime JP2557675Y2 (en) | 1989-05-19 | 1989-05-19 | Clamp mechanism for indexable inserts |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5035544A (en) |
| EP (1) | EP0398363B1 (en) |
| JP (1) | JP2557675Y2 (en) |
| KR (1) | KR950006963Y1 (en) |
| DE (1) | DE69007533T2 (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5232317A (en) * | 1991-07-22 | 1993-08-03 | J. P. Tool, Inc. | Indexable spherical seat cutter |
| SE509338C2 (en) * | 1994-03-04 | 1999-01-11 | Sandvik Ab | Cutting tools |
| US5536120A (en) * | 1994-05-11 | 1996-07-16 | Miller; Arthur W. | Turning tool holder having rotatably adjustable clamping mechanism |
| SE508666C2 (en) | 1994-05-27 | 1998-10-26 | Sandvik Ab | Cutter holder for inserts |
| SE511759C2 (en) * | 1996-12-09 | 1999-11-22 | Sandvik Ab | Cutter holder for inserts |
| SE514249C2 (en) * | 1997-09-10 | 2001-01-29 | Seco Tools Ab | Chip separation tool |
| DE19949743C1 (en) * | 1999-10-15 | 2001-03-22 | Hollfelder Hans Peter | Cutting tool for high-speed machining of metal workpiece has cutting block clamped in tool holder and positioned relative to latter by pin of eccentric bolt |
| US6409435B1 (en) | 2000-07-03 | 2002-06-25 | Valenite Inc. | Cutting tool and method of locating cutting insert |
| US6457914B1 (en) | 2000-08-24 | 2002-10-01 | Kennametal Inc. | Clamping tool holder |
| US6722826B2 (en) | 2001-09-11 | 2004-04-20 | Brian M. Cavanaugh | Internal cavity cutting tool with stable support |
| KR100517460B1 (en) * | 2002-09-27 | 2005-09-29 | 대구텍 주식회사 | high feed cutter |
| US6991410B2 (en) * | 2003-10-08 | 2006-01-31 | Kennametal Inc. | Toolholder assembly |
| US7547163B2 (en) * | 2007-07-16 | 2009-06-16 | Kennametal Inc. | Clamping tool holder |
| ES2393441T3 (en) * | 2008-03-18 | 2012-12-21 | Franz-Josef Pokolm | Tool for milling, for machining by chip removal of work pieces |
| US8057131B2 (en) * | 2009-01-17 | 2011-11-15 | Kennametal Inc. | Clamping tool holder |
| AT14369U1 (en) * | 2014-11-24 | 2015-09-15 | Ceratizit Austria Gmbh | Tool for machining |
| DE102016117198A1 (en) * | 2016-09-13 | 2018-03-15 | Kennametal Inc. | Tool holder for an indexable insert and cutting tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3171188A (en) * | 1963-05-10 | 1965-03-02 | Willeys Carbide Tool Co | Cutting tool |
| US3341920A (en) * | 1965-02-16 | 1967-09-19 | Gen Electric | Cutting tool |
| US3341923A (en) * | 1966-09-09 | 1967-09-19 | Gen Electric | Cutting tool |
| DE2108910A1 (en) * | 1971-02-25 | 1972-08-31 | Boehler & Co Ag Geb | Clamping steel holder |
| SE368786B (en) * | 1972-12-13 | 1974-07-22 | Sandvik Ab | |
| CH578908A5 (en) * | 1973-06-29 | 1976-08-31 | Walter Gmbh Montanwerke | |
| FR2332090A1 (en) * | 1975-11-21 | 1977-06-17 | Plansee Metallwerk | TOOL HOLDER, ESPECIALLY FOR COPY LATHES |
| JPS5390090A (en) * | 1977-01-19 | 1978-08-08 | Mitsubishi Metal Corp | Clamp mechanism |
| JPS5390089A (en) * | 1977-01-19 | 1978-08-08 | Mitsubishi Metal Corp | Clamp mechanism |
| JPS6011714B2 (en) * | 1977-02-17 | 1985-03-27 | 武田薬品工業株式会社 | Cephalosporin derivatives and their production method |
| JPS5946338B2 (en) * | 1977-03-22 | 1984-11-12 | 株式会社日立製作所 | ultrasonic probe |
| JPS53116090A (en) * | 1977-03-22 | 1978-10-11 | Oki Electric Ind Co Ltd | Through-hole forming method for semiconductor integrated circuit |
| JPS53117880A (en) * | 1977-03-24 | 1978-10-14 | Mitsubishi Metal Corp | Cramp mechanism |
| JPS582769B2 (en) * | 1977-03-24 | 1983-01-18 | 三菱マテリアル株式会社 | clamp mechanism |
| JPS53117882A (en) * | 1977-03-24 | 1978-10-14 | Mitsubishi Metal Corp | Clamp mechanism |
| JPS5848282B2 (en) * | 1977-05-14 | 1983-10-27 | 三菱マテリアル株式会社 | clamp device |
| JPS5481989U (en) * | 1977-11-22 | 1979-06-11 | ||
| JPS6011817B2 (en) * | 1977-11-24 | 1985-03-28 | 松下電器産業株式会社 | Manufacturing method of semiconductor device |
| US4229706A (en) * | 1979-01-05 | 1980-10-21 | Bongiorno James W | Audio amplifier |
| DE2906148A1 (en) * | 1979-02-17 | 1980-08-28 | Walter Gmbh Montanwerke | CUTTING TOOL WITH REPLACEMENT INSERT |
| JPS5946401B2 (en) * | 1979-11-07 | 1984-11-12 | 松下電器産業株式会社 | thermistor |
| US4309132A (en) * | 1980-02-28 | 1982-01-05 | Thomas Adamson | Face mill with adjustable cutting inserts |
| JPS573502A (en) * | 1980-06-04 | 1982-01-09 | Hitachi Ltd | Slip detecting device |
| JPS5848282A (en) * | 1981-09-14 | 1983-03-22 | Toshiba Corp | Video disk reproducer |
| JPS5847405A (en) * | 1981-09-17 | 1983-03-19 | 株式会社クボタ | Self-running type rice planter |
| JPH0215803A (en) * | 1988-06-30 | 1990-01-19 | Aichi Steel Works Ltd | Manufacture of channel steel |
-
1989
- 1989-05-19 JP JP1989057625U patent/JP2557675Y2/en not_active Expired - Lifetime
-
1990
- 1990-03-17 KR KR2019900003122U patent/KR950006963Y1/en not_active IP Right Cessation
- 1990-05-17 US US07/524,473 patent/US5035544A/en not_active Expired - Lifetime
- 1990-05-18 EP EP90109474A patent/EP0398363B1/en not_active Expired - Lifetime
- 1990-05-18 DE DE69007533T patent/DE69007533T2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE69007533D1 (en) | 1994-04-28 |
| JPH02150102U (en) | 1990-12-25 |
| DE69007533T2 (en) | 1994-08-04 |
| KR900020054U (en) | 1990-12-12 |
| KR950006963Y1 (en) | 1995-08-23 |
| US5035544A (en) | 1991-07-30 |
| EP0398363B1 (en) | 1994-03-23 |
| EP0398363A1 (en) | 1990-11-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |